Engine primer



A` l.. PARKER ET AL Sept. 28, 1948.V

' J ENGINE PRIMER Original Filed Nv. 27, 1944 L af Patented Sept. 28,1948 UNITED STATES PATENT OFFICE ENGINE PRIMER Ohio Original applicationNovember 27, 1944, Serial No. 565,240, now Patent No. 2,412,532, datedDecember 10, 1946.v Divided and this application May 15, 1945, SerialNo. 593,799

Claims.

In a copending application Serial No. 565,240, filed November` 27, 1944,now Patent No. 2,412,532, granted Dec. 10, 1946 there is shown an engineprimer including an indexing, locking and in- -dicating arrangement foruse with a selector disk valve. The present application is a divisionthereof and is directed to the construction of the disk valve and themeans for operating the same.

An object o'f the invention is to provide a primer of the reciprocatingpiston type with a rotary disk valve for selectively distributing thefluid transferred by the reciprocating piston.

A further object ofthe invention is to provide a primer of the abovetype with spring means for holding the disk valve continuously incontact with its seat.

A further object of the invention is to provide a primer having a diskvalve for selectively controlling the discharge yof the iiuid from theprimer wherein said disk valve has an outlet axially thereof leading toa radial port in the under face of the valve so that by rotation of thevalve said radial port will be selectively connected to the outlet portsof the primer.

A still further object of the invention is to provide a disk valvemechanism for a primer of the above type wherein a check Valve islocated in the axial outlet of the valve and so disposed as to openunder the pressure of the fluid discharged by the piston.

These and other objects will in part 4be obvious and in part will Ibehereinafter more fully disclosed.

In the drawing wherein like reference characters refer to like partsthroughout the several views:

Figure 1 is a longitudinal sectional view of an embodiment of thepresent invention.

Figure 2 is a fragmentary longitudinal sectional view illustrating theaction of the valve device when disconnected from the piston.

Figure 3 is an end elevati-on illustrating the piston operating handleand associated parts.

Figure 4 is a transverse sectional view taken on the line 5-5 of Figure1.

Figure 5 is a face view of the valve abutment plate.

The dispensing engine primer in which the novel valve arrangement isincorporated, comprises a cylinder I0, a piston II with an enlarged headportion I2, an operating handle I3 for reciprocating or 'rotating thepiston head I2, and an inlet check valve I4 leading into the base of thecylinder I0, which is bell-shaped so as to form 2 an enlarged chamber I6designed to house the novel selector valve arrangement.

The chamber of the cylinder I0 is closed by a block I'I provided with aplurality of conduits I8 each leading to a plurality of radiallydirected discharge ports I9. This block I'I may be secured to theannular` end wall of the cylinder I0 by bolts 20, and if desired agasket 22 interposed between the contacting faces of the block I'I andthe end wall of cylinder I0, to thereby provide a duid-tight joint.

The wall of cylinder Ill contains a threaded aperture, which leads intothe enlarged chamber I6, and in which is threaded a unit which containsthe inlet check Valve I4.

The inner face of the block I'I, is made flat and true, so as to providea fiat seating surface for the body I5 of the selector valvearrangement, as hereinafter explained.

This valve comprises the body I5 having a central longitudinallyextending outlet passage 3| extending therethrough. One end of the valvebody I5 has a non-circular reduced portion 33 and the other endcomprises a relatively larger headed portion and has bonded thereto adisk 34 of material having lubricating properties, such as for example agraphite composition. This disk 34 is adapted to seat on the flatsurface of the block I'I. The disk 34 is apertured centrally at 35, seeFigure 4, so as to align with the central aperture 3I defined in thevalve body I5, and contains a radial channel 36, leading 01T from theapertures 3| and 35, so as to selectively align with the openings in theblock I'I defined by the ends of conduits I8 therein. Each of theseconduits communicates with its respective radially positioned outlet.

The valve body I5 is counterbored a substantial part of its length fromthe graphic seat portion 34 thereof for the purpose of housing in thesaid counterbore an outlet check valve comprising a ball.35a and aspring 31. The spring 3'! rests in an annular depression 38 denedcentrally in the flat face of the block I'I and expands against thesurface of the ball 36a to thereby maintain the ball seated over the endof the re' stricte-d portion of the central opening in the valve bodyI5.

Mounted concentrically around the valve body is a yieldable member, suchas a coiled spring 4D. This coiled spring 40, see Figure 2, is alwaysmaintained under compression between the Valve body I5 and a springabutment-plate 4I, one end thereof engaging a shoulder 42 on the seatinghead of the valve body I5, and the other 3 end engaging with the springabutment plate ii through which the iiattened end 33 of the valve bodyl5 protrudes.

The spring abutment plate 4i is Vadapted to engage with an annularshoulder e3 at the upper end of the enlarged chamber i5, and isapertured, as shown in Figure 5, to provide for the passage of fluid toand from the cylinder l around the flat end portion 35i ofthe valve-bodyI5.

Normally, as shown in Figure 1,when the piston il is locked down, asdescribed in our copending application, supra, the spring abutment platelil is depressed downwardly away from the shoulder by the piston headl2, but when the piston is rotated by handle i3 to thereby rotate thevalve to any selected'open position in registry with one of the channelsI8 in the-block I1, then the spring d@ expands and pushes the abutmentplate 4i into engagement with shoulder @ii-as shown in Figure 2. Thisaction ofthe spring ed, also pushesthe head of the piston upward, so asto disconnect the same from its connection with the flat end 33 of thevalve body i5, so that the piston Ymay now be moved independently-of thevalve body l5. Simultaneously Vupon lengagement of the spring abutmentplate il with the shoulder (i3, the spring iu continues to press thevalve body l5, and seat 3d downwardinto fluid-tight engagement-with theflat seating surface cf block il. Obviously, the spring gli@ should havegreater tension than the -opposing suction forces created in thecylinder by the upward movement of the piston i l, so that the valvebody l5 will-remain seated on the flat seating surface of the'block rli.

In addition to providing a valve body vI5 with a seating disk 3d ofgraphitic material, the piston Il may also be provided with a lgraphitering-50, as shown in Figure'2. With this graphite-ring 59, thepistcnhead I2 does not rub against and score the cylinder Walls when thewalls are still dry before iiuid has been drawn in Ythrough the inletvalve M, and thus thefpacking ring 49 on the piston head |2- willwear-much longer.

AThus there is provided a` dispensingI valve unit including Va selectordisk valve and an outlet check valve havingparticular utility in engineprimers Vofthe reciprocating piston type,-vvhere-'v inthe `valveelementsof the unit cooperate to dispense liiuid from any one of a plurality -ofoutlets selected by rotation vof the unit by the primer and wherein thevalve is maintained in Contact with its seating surface, at all times.v

The valve is also provided with a replaceable disk seat having theproperties of lubricating a it is rotated, and resilient means adaptedto constantly press the outlet end of said body against said iiatseating surface to effect a seal therebetween except through one of saidselected out- "lets.

2. A valve for engine primers or the like having Ia at surfacecontaining a plurality of outlet con- .'duits, and a valve mechanismincluding a body,

-oneendfthereof having a ilat head portion and the l.other endanon-circular relatively smaller 'portion, a Ycheck valve mounted withinsaid body adapted'to permit the discharge of fluid under pressure, meansdetachably connected to said non-circular endportion adapted to therebyrotate thesaid body, and a disk secured to said fiat headportion andengaging said at seat surface, said. disk having means for radiallydirecting fluid -discharged through the valve in said body into ,anyselected one of said outlet conduits in the said at seat surface.

`3. A valve for engine primers orthe like hav- -ingeaat surfacecontaining a plurality of outlet conduits anda valve mechanism includinga body, one endthereof having a flat head portion and the otheriend aynon-,circular relatively smaller portion, a checkrvalve mounted withinsaid body ,adaptedtopermit the discharge of fluid under pressure,V meansfdetachably connected to `said `noncircularend portion adapted tothereby rotate the `said -body, and a centrally apertured vgraphite vdisk containing a radial channel therein adaptedto radially direct uiddischarged from the s aid body .to a selected, conduit in said seat,

l. ,A valve forengine primers or the like having-.a flat surfacecontaining a plurality of outlet conduits, and a valve mechanismincluding a v 1bo dy,. one Tend thereof having a flat head portion flatseating surface containing the outlets to redisposed outlet, meansconnected to said body;

for rotating the same, a flat seat carried by said body having a radialchannel therein connected to said outlet, a flat seating surface havinga plurality of outlet conduits adapted to independently register withthe channel in said seat when and .the other end a non-circularrelatively smaller lfportion, a `check valvemounted within .saidbody-adaptedto permit the discharge of fluid ,under pressure, meansdetachablyv connected fto Ysaid,non-circular. endiportion adapted tothereby rotate the .said,body,1 a disc secured tosaidiiat head portionand engagingsaid at seat surface, said disk having meansfor radiallydirecting uid the valve body in engagement with the said flat seatsurface, during all the functions of the valve.

V ,5. Afvalve adapted to be, mounted in a cylinder having an enlargedbase portion with an internal annular shoulder therein, for use in.engine ,primersronthe ,like-comprising a body with a central conduit, aflat heat at one end y,of said `bodyra. disk securedto saidhead having acentral selected-,outlet conduits.

HELEN M.PARKER. .Erecutrir-for-Arthur L. Parker, Deceased. JOSEPH F..MELICHAR.

iteferences on following page) 6 REFERENCES CITED Number Name Date T f fd 1,335,112 Line Jan. 11, 1921 lehf rllliswggferrlteferens e rem i the1,909,755 ceaerstrom May 16,1933 1,942,255 Parker Jan. 2, 1934 UNITEDSTATES PATENTS 5 2,091,453 crossen May 14,1935 Number Name Date2,333,934 Jacobson Nov. 9, 1943 1,994,097 Pomey Apr. 21, 1914

